H(x)=3x-5
g(x)=-3x-1
Find (h-g)(x)

(h-g)(x)=
Taking h(x) and g(x) and algebraically subtracting them
3x-5-(-3x-1)
if it makes it easier distribute the negative to get
3x-5+3x+1
Combine like terms to get
(h-g)(x)=6x-4
Make x any value needed if you need to go further with the same equation

None of those are technically correct. 9.7 x 104 is actually 1,008.8, but if that answer was a choice, it would be that one. if you meant 9.7 times maybe a thousand or more or divided by 10 or more, than the answer choices would be correct, but other than that, they actually arent.